Twitter has launched Twitter Alerts on September 25 a new feature called Twitter Alerts.They said that this application could be very useful during natural disaster or any other emergencies when normal channels are unavailable.Gaby Pena said on Twitter blog,"We know from our users how important it is to be able to receive reliable information during these times."When users sign up for an account of Twitter Alerts, they will receive a notification directly in their phone for tweets marked as alerts by the senders. A series of organisation have already been authorised to send such alerts and Twitter will expand this service to "public institutions and NGOs around the world." Source:[Click Here!]